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Heavy metals contents in different types of bread samples and its raw materials [electronic resource].

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Abou-Raya, M.A

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Language: English Summary language: Arabic Description: p.5405-5512Other title:

محتوى انواع مختلفة من الخبز ومكوناتها من المعادن الثقيلة [Added title page title]

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Mansoura University journal of agricultural sciences, 2007 v. 32 (7) [electronic resource].

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In: Mansoura Unviersity Journal of Agricultural Sciences 2007.v.32(7)Summary: The contents of Cu, Zn. pb, Cd and Hg were analyzed In raw materials us.ed to produce bread samples Ie. (wheat flour 82% and 72%, wheat bran, tap water, salt. compressed yeast, dough and final product (shamey, Balady and bran bread samples) and different types of bread samples which collected from EI-Mansoura City super market. These heavy metals were detennined using atomic absorption spectrorphotometry (AAS). The results showed that : • The concentrations of heavy metals In compressed yeast and wheat bran were higher than other raw materials. • The amount of heavy metals were In bran higher than In whole wheat flour than wheat flour ext. 82% than wheat flour ext. 72%. • The highest level of this heavy metals were In bran bread samples (4.944 5.335 mglkg for Cu. 34.166 - 36.145 mglkg for In, 1.907 - 2.076 mg/kg for pb,0.2 - 1.10 mgJkg for Cd and 0.01 - 0.013 mg/kg for Hg).

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The contents of Cu, Zn. pb, Cd and Hg were analyzed In raw materials us.ed to produce bread samples Ie. (wheat flour 82% and 72%, wheat bran, tap water, salt. compressed yeast, dough and final product (shamey, Balady and bran bread samples) and different types of bread samples which collected from EI-Mansoura City super market. These heavy metals were detennined using atomic absorption spectrorphotometry (AAS). The results showed that : • The concentrations of heavy metals In compressed yeast and wheat bran were higher than other raw materials. • The amount of heavy metals were In bran higher than In whole wheat flour than wheat flour ext. 82% than wheat flour ext. 72%. • The highest level of this heavy metals were In bran bread samples (4.944 5.335 mglkg for Cu. 34.166 - 36.145 mglkg for In, 1.907 - 2.076 mg/kg for pb,0.2 - 1.10 mgJkg for Cd and 0.01 - 0.013 mg/kg for Hg).

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